Effective Irradiance (UV)

Effective Irradiance (UV)

RN-03
ASPCSPAdvanced

Formula
Eeff = Σ(Eλ × Sλ × Δλ)
When to Use

Calculate the effective UV irradiance weighted by biological action spectrum. Used to assess UV overexposure risk.

Symbol Legend
SymbolMeaningUnitNote
EeffEffective irradianceW/cm²
EλSpectral irradiance at wavelength λW/cm²·nm
SλRelative spectral effectivenessaction spectrum
ΔλWavelength bandwidthnm

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